PSMA Positive Tumors or Tumor TissuesPhase 1/2NCT04429451
PSMA-specific CAR-T Cell Therapy
A Phase 1/2 study testing 4SCAR-PSMA T cells in people with PSMA Positive Tumors or Tumor Tissues, run by Shenzhen Geno-Immune Medical Institute at 1 site in China.
Trial summary
The purpose of this clinical trial is to assess the feasibility, safety and efficacy of PSMA-specific CAR-T cell therapy in patients with PSMA positive tumor. Another goal of the study is to learn more about the function of the PSMA CAR-T cells and their persistency in the patients. Read more about this study
- Who is it for?
- Ages 1 year to 75 years
- Conditions the study is for
- PSMA Positive Tumors or Tumor Tissues
- What is being tested?
- 4SCAR-PSMA T cells
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 100 participants
- Where
- 1 siteChina
- Study dates
- 31 Dec 2026to 31 Dec 2030
- Phase
- Phase 1/2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 1 year to 75 years
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Patients with tumors have received standard first-line therapy and have been judged to be non-respectable, metastatic, progressive or recurrent.
- The expression status of PSMA antigens in the tumor tissue will be determined for eligibility. Positive expression is defined by PMSA antibody staining results based on immunohistochemistry or flow cytometry analyses.
- Body weight greater than or equal to 10 kg.
- Age: ≥1 year and ≤ 75 years of age at the time of enrollment.
- Life expectancy: at least 8 weeks.
- Prior Therapy:
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- There is no limit to the number of prior treatment regimens. Any grade 3 or 4 non-hematologic toxicity of any previous therapy must have resolved to grade 2 or less.
- Participant must not have received hematopoietic growth factors for at least 1 week prior to mononuclear cells collection.
- At least 7 days must have elapsed since the completion of therapy with a biologic agent, targeted agent, tyrosine kinase inhibitor or a metronomic non-myelosuppressive regimen.
- At least 4 weeks must have elapsed since prior therapy that included a monoclonal antibody.
- At least 1 week since any radiation therapy at the time of study entry.
- Karnofsky/jansky score of 60% or greater.
- Cardiac function: Left ventricular ejection fraction greater than or equal to 40/55 percent.
- Pulse Ox greater than or equal to 90% on room air.
- Liver function: defined as alanine transaminase (ALT) <3x upper limit of normal (ULN), aspartate aminotransferase (AST) <3x ULN; serum bilirubin and alkaline phosphatase <2x ULN.
- Renal function: Patients must have serum creatinine less than 3 times upper limit of normal.
- Marrow function: White blood cell count ≥1000/ul, Absolute neutrophil count ≥500/ul, Absolute lymphocyte count ≥500/ul, Platelet count ≥25,000/ul (not achieved by transfusion).
- Patients with known bone marrow metastatic disease will be eligible for study as long as they meet hematologic function criteria, and the marrow disease does not have hematologic toxicity.
- For all patients enrolled in this study, themselves or their parents or legal guardians must sign an informed consent and assent.
Who cannot join
- Existing severe illness (e.g. significant cardiac, pulmonary, hepatic diseases, etc.) or major organ dysfunction, or greater than grade 2 hematologic toxicity.
- Untreatable central nervous system (CNS) metastasis: Patients with previous CNS tumor involvement that has been treated and is stable for at least 6 weeks following completion of therapy are eligible.
- Previous treatment with other genetically engineered PSMA-specific CAR T cells or antibody therapy.
- Active HIV, Hepatitis B virus (HBV), Hepatitis C virus (HCV) infection or uncontrolled infection.
- Patients who require systemic corticosteroid or other immunosuppressive therapy.
- Evidence of tumor potentially causing airway obstruction.
- Inability to comply with protocol requirements.
- Insufficient CAR T cells availability.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
China1 site
Shenzhen Geno-immune Medical Institute
Shenzhen, Guangdong, 518000
Lung-Ji Chang, PhD, +86 0755-86573763, c@szgimi.org
About this study
Official title: Phase I/II Clinical Trial of 4SCAR-PSMA T Cell Therapy Targeting PSMA Positive Malignancies
The purpose of this clinical trial is to assess the feasibility, safety and efficacy of PSMA-specific CAR-T cell therapy in patients with PSMA positive tumor. Another goal of the study is to learn more about the function of the PSMA CAR-T cells and their persistency in the patients.
Read the detailed description
Important Regulatory Notice:
This trial record is only for global academic information registration on ClinicalTrials.gov. Neither the sponsor Beijing Meikang Jimian Biotechnology Co., Ltd. nor collaborator Shenzhen Geno-Immune Medical Institute has obtained NMPA clinical trial approval or clinical technology filing permission to carry out interventional cell therapy trials in mainland China.
ClinicalTrials.gov registration alone does not represent legal approval by Chinese health and drug regulatory authorities.
Prostate-specific membrane antigen (PSMA) is expressed in normal prostate and is upregulated in prostate tumor. Therefore, PSMA is a promising target for antigen-specific immunotherapy in patients with prostate cancer. However, it has been reported that PSMA expression is not restricted to prostate cancer and PSMA is often enriched in the tumor stromal environment. By immunostaining, we found that PSMA is expressed in a variety of solid tumors, including brain tumor, neuroblastoma and some lymphoma tumor tissues.
This study aims to use T cells obtained directly from the patient, which can be genetically modified to express PSMA-specific chimeric antigen receptor (CAR). The CAR molecules enable the T cells to recognize and kill tumor cells or tumor stromal tissues through the recognition of a surface antigen, PSMA. This study will evaluate the side effects and the best dose of anti-PSMA CAR-T cells to target PSMA positive tumors and tumor microenvironment.
- Conditions
- PSMA Positive Tumors or Tumor Tissues
- Being tested
- 4SCAR-PSMA T cells
- Keywords
- chimeric antigen receptor, adoptive T cell transfer, PSMA, Prostate cancer, Tumor microenvironment, CAR
- Medical subject headings
- Prostatic Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
4SCAR-PSMA T cellsBiological
Infusion of 4SCAR-PSMA T cells at 10^6 cells/kg body weight via IV
| Study group | Role | What they receive |
|---|---|---|
| 4SCAR-PSMA Cell Therapy for PSMA positive tumor | Experimental | Infusion of 4SCAR-PSMA T cells at 10^6 cells/kg body weight via IV Receives: Biological: 4SCAR-PSMA T cells |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of patients with adverse events.
Determine the toxicity profile the 4SCAR-PSMA cells with Common Toxicity Criteria for Adverse Effects version 4.0
Measured: 3 year
Secondary outcomes (3)
Anti-tumor effects
Objective responses (complete response (CR) + partial response (PR)) are assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 criteria.
Measured: 1 year
The expansion and persistence of 4SCAR-PSMA T cells
Scale of CAR copies and tumor burden (for efficacy)
Measured: 1 year
Survival time of the patients
The survival time of the patients treated with the 4SCAR-PSMA T cells, including progression free survival (PFS) and overall survival (OS) will be evaluated.
Measured: 3 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Jun 2020
- Study start31 Dec 2026 (estimated)
- Primary completion31 Dec 2029 (estimated)
- Study completion31 Dec 2030 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for PSMA Positive Tumors or Tumor TissuesStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1/2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Shenzhen Geno-Immune Medical Institute
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Lung-Ji Chang, Shenzhen Geno-Immune Medical Institute
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04429451
- Sponsor's protocol ID
- GIMI-IRB-20003
- Status last verified
- Aug 2026
- First submitted
- 9 Jun 2020
- Last updated
- 26 Aug 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 26 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase I/II Clinical Trial of 4SCAR-PSMA T Cell Therapy Targeting PSMA Positive Malignancies
- ClinicalTrials.gov ID
- NCT04429451
- Acronym / sponsor ID
- GIMI-IRB-20003
- Conditions
- PSMA Positive Tumors or Tumor Tissues
- Keywords
- chimeric antigen receptor, adoptive T cell transfer, PSMA, Prostate cancer, Tumor microenvironment, CAR
- Phase
- Phase 1/2
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Shenzhen Geno-Immune Medical InstituteUniversity, hospital or other
- Study start
- 31 Dec 2026 (estimated)
- Primary completion
- 31 Dec 2029 (estimated)
- Study completion
- 31 Dec 2030 (estimated)
- First posted
- 12 Jun 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this clinical trial is to assess the feasibility, safety and efficacy of PSMA-specific CAR-T cell therapy in patients with PSMA positive tumor. Another goal of the study is to learn more about the function of the PSMA CAR-T cells and their persistency in the patients.
Detailed description
Important Regulatory Notice:
This trial record is only for global academic information registration on ClinicalTrials.gov. Neither the sponsor Beijing Meikang Jimian Biotechnology Co., Ltd. nor collaborator Shenzhen Geno-Immune Medical Institute has obtained NMPA clinical trial approval or clinical technology filing permission to carry out interventional cell therapy trials in mainland China.
ClinicalTrials.gov registration alone does not represent legal approval by Chinese health and drug regulatory authorities.
Prostate-specific membrane antigen (PSMA) is expressed in normal prostate and is upregulated in prostate tumor. Therefore, PSMA is a promising target for antigen-specific immunotherapy in patients with prostate cancer. However, it has been reported that PSMA expression is not restricted to prostate cancer and PSMA is often enriched in the tumor stromal environment. By immunostaining, we found that PSMA is expressed in a variety of solid tumors, including brain tumor, neuroblastoma and some lymphoma tumor tissues.
This study aims to use T cells obtained directly from the patient, which can be genetically modified to express PSMA-specific chimeric antigen receptor (CAR). The CAR molecules enable the T cells to recognize and kill tumor cells or tumor stromal tissues through the recognition of a surface antigen, PSMA. This study will evaluate the side effects and the best dose of anti-PSMA CAR-T cells to target PSMA positive tumors and tumor microenvironment.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| 4SCAR-PSMA Cell Therapy for PSMA positive tumor | Experimental | Biological: 4SCAR-PSMA T cellsInfusion of 4SCAR-PSMA T cells at 10^6 cells/kg body weight via IV |
Who may qualify
- Ages
- 1 year to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (19 listed)
- Patients with tumors have received standard first-line therapy and have been judged to be non-respectable, metastatic, progressive or recurrent.
- The expression status of PSMA antigens in the tumor tissue will be determined for eligibility. Positive expression is defined by PMSA antibody staining results based on immunohistochemistry or flow cytometry analyses.
- Body weight greater than or equal to 10 kg.
- Age: ≥1 year and ≤ 75 years of age at the time of enrollment.
- Life expectancy: at least 8 weeks.
Key exclusion criteria (8 listed)
- Existing severe illness (e.g. significant cardiac, pulmonary, hepatic diseases, etc.) or major organ dysfunction, or greater than grade 2 hematologic toxicity.
- Untreatable central nervous system (CNS) metastasis: Patients with previous CNS tumor involvement that has been treated and is stable for at least 6 weeks following completion of therapy are eligible.
- Previous treatment with other genetically engineered PSMA-specific CAR T cells or antibody therapy.
- Active HIV, Hepatitis B virus (HBV), Hepatitis C virus (HCV) infection or uncontrolled infection.
- Patients who require systemic corticosteroid or other immunosuppressive therapy.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| 4SCAR-PSMA T cellsInfusion of 4SCAR-PSMA T cells at 10^6 cells/kg body weight via IV | Biological | 4SCAR-PSMA Cell Therapy for PSMA positive tumor |
Primary outcome
Number of patients with adverse events.
Time frame: 3 year
Determine the toxicity profile the 4SCAR-PSMA cells with Common Toxicity Criteria for Adverse Effects version 4.0
3 secondary outcomes
Anti-tumor effects
Time frame: 1 year
The expansion and persistence of 4SCAR-PSMA T cells
Time frame: 1 year
Survival time of the patients
Time frame: 3 year
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Aug 2026.
- Individual participant dataSharing planned: No
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PSMA Positive Tumors or Tumor Tissues, Prostate Cancer Metastatic
Enrolling by invitationObservational study
Diagnostic Performance of PET/CT-PSMA in Patients With Non-prostatic PSMA-expressing Neoplasms
PSMA Positive Tumors or Tumor Tissues, Cancer
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1/2 study testing 4SCAR-PSMA T cells in people with PSMA Positive Tumors or Tumor Tissues, run by Shenzhen Geno-Immune Medical Institute at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 19 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 26 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of patients with adverse events. (time frame: 3 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Aug 2026.